// flex布局复用
@mixin flex($hov:space-between,$col:center){
    display:flex;
    justify-content: $hov;
    align-items: $col;
}
@mixin bgImg($w:0,$h:0,$img:'',$size:contain){
    display: inline-block;
    background: url($img) no-repeat center;
    background-size: $size;
    width: $w;
    height: $h;
}
@mixin position($pos:absolute,$top:0,$left:0,$w:100%,$h:100%){
    position: $pos;
    top: $top;
    left: $left;
    width: $w;
    height: $h;
}
@mixin positionImg($pos:absolute,$top:0,$right:0,$w:0,$h:0,$img:''){
    position: $pos;
    top: $top;
    right: $right;
    width: $w;
    height: $h;
    background: url($img) no-repeat center;
    background-size: contain;
}
@mixin height($h:0,$lh:$h){
    height: $h;
    line-height: $lh
}
@mixin wH($w:0,$h:0){
    width: $w;
    height: $h;
}
@mixin border($bw:1px,$bc:$colorF,$bs:solid){
    border: $bw  $bc  $bs
}